Does any body have some Undergrad introduction to Metrics book recommendations?

I am going to be taking my intro to Econometrics class next semester and I wanted to take some time over the summer to prepare myself for the class. Are there any good introductory books that would get me familiar with the topics and Process of metrics. I have been recommended "Mastering Metrics: The Path from Cause to Effect," but I wanted to get a wider range of opinions.

Thanks for any and all help!